Update firebasedeploy.yml

Author: aamoghS

.github/workflows/firebasedeploy.yml

@@ -42,3 +42,4 @@ jobs:
           firebaseServiceAccount: ${{ secrets.FIREBASE_SERVICE_ACCOUNT_DSGT }}
           projectId: dsgt-website
           channelId: ${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || 'live' }}
+          entryPoint: sites/mainweb